Roland FP7 (Has Roland’s Progressive hammer Action 2 keyboard installed!)
Roland FP4 (condensed FP7)
Yamaha CP33 (condensed CP300 but no speakers)
Yamaha P250 or CP300 which should be under £1000 brand new. I personally own a CP300 and am very satisfied, though not ideal for gigging owing to its 40kg body!
Look also into these which DO NOT have their own speakers
If you are into good piano sounds, I'd be dubious about touching Korgs or Casios. Korg is a much more serious stage brand but to my ear, they haven't quite nailed a convincing piano sample...yet! The SP range from Korg may be worth looking into if you come across them in the shops.